Kishimoto uses a lot of Shintoism in his stories, so you got to find the Shinto version of the Zodiac signs. Though they can also be Buddist to since there's some Buddism in Naruto as well.
Well, there's no proof. It's cool, but in Naruto and Sakura's case, I think the traits are reversed. As for SasuSaku, yes it implies it can work, but it did say when it's bad, it's REALLY bad (fics with an abused Sakura, anyone?). In all honesty, I think Kishimoto picked the birthdays at random.
I should also add that I read the Naruto fan book (or a fan book, can't remember). It said that Sakura and Sasuke, based on zodiac signs (which I'm not sure) are 80% compatible. Sasuke and Ino, believe it or not, are 90% compatible!
If it makes you feel better, a question asked Sakura (obviously a mock interview) "Who do you like better? Naruto or Sasuke?"
She pretty much stuttered.
And who knows? If we're going with the blood-type compatibility, and NaruSaku happens regardless, maybe Kishi is trying to say in his own way that such methods of match-making are bull. I guess we should find out how he picked his wife.
Where is this fanbook found?
Here's some more information about Team 7 that could be included into this discussion.
http://forums.animes...mp;postcount=31
QUOTE
Uzumaki Naruto
Ninja Registration Serial Number: 012607
Ninja Academy Graduation Age: 12
Birthday: October 10th (12-years-old, Libra)
Height: 145.3cm Weight: 40.1kg Blood Type: B
Personality: Refuses to lose, likes to show off
Like Food: Ichiraku Ramen, red bean paste
Dislike Food: Fresh vegetable
Desired Opponent: Uchiha Sasuke, Sarutobi
Favorite phrase: "Big bowl of Miso with Fried Pork" [Ramen, I presume]
Hobby: Pulling pranks, watering plants
Uchiha Sasuke
Ninja Registration Serial Number: 012606
Ninja Academy Graduation Age: 12
Birthday: July 23th (12-years-old, Leo)
Height: 150.8cm Weight: 42.2kg Blood Type: AB
Personality: Cold and arrogant, insists on appearing strong
Like Food: Tomato, fish riceball
Dislike Food: Sweet beans
Desired Opponent: Uchiha Itachi
Favorite phrase: "Strength" [Or "Power"]
Hobby: Training, taking a walk
Haruno Sakura
Ninja Registration Serial Number: 012601
Ninja Academy Graduation Age: 12
Birthday: March 28th (12-years-old, Aries)
Height: 148.5cm Weight: 35.4kg Blood Type: O
Personality: Stubborn, well-educated
Like Food: Red bean meatball sweet soup, [A dried snack that is sweet and sour]
Dislike Food: Spicy food
Specialized Technique: No specialty
Desired Opponent: Yamanaka Ino
Favorite phrase: "A lifetime full of love!"
Hobby: Riddles, memorization
Edited by MagusKyros, 07 March 2008 - 08:25 PM.